英制螺纹标准对照表

1、英制螺纹标准对照表英制普通螺纹 (惠氏螺纹) - 小螺纹系列 (BA)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径BAmmmmtpimm外螺纹H1mmd=Dpd2=D2d3No. 14BA10.23110.40.860.720.140.75No. 13BA1.20.25101.61.050.90.150.95No. 12BA1.30.2890.711.130.960.171No. 11BA1.50.3181.931.3151.130.1851.2No. 10BA1.70.3572.571.491.280.211.35No. 9BA1.90.3965.121.6651.430.235

2、1.5No. 8BA2.20.4359.071.941.680.261.8No. 7BA2.50.4852.922.211.920.292No. 6BA2.80.5347.922.482.160.322.3No. 5BA3.20.5943.052.8452.490.3552.6No. 4BA3.60.6638.483.2052.810.3952.95No. 3BA4.10.7334.793.663.220.443.4No. 2BA4.70.8131.354.2153.730.4853.9No. 1BA5.30.928.224.764.220.544.4No. 0BA6125.45.44.80.

3、6555圆锥管螺纹型式和尺寸螺纹代号基本尺寸大径螺距每英寸牙数中径小径牙型高度圆弧尺寸底孔尺寸英 寸mmmmtpimm外螺纹H1rmmd=Dpd2=D2d3R 1/161/167.7230.907287.1426.5610.5810.1256.4R 1/81/89.7280.907289.1478.5660.5810.1258.4R 1/41/413.1571.3371912.30111.4450.8560.18411.2R 3/83/816.6621.3371915.80614.950.8560.18414.75R 1/21/220.9551.8141419.79318.6311.1620.

4、24918.25R 3/43/426.4411.8141425.27924.1171.1620.24923.75R 1133.2492.3091131.7730.2911.4790.31730R 1 1/41 1/441.912.3091140.43138.9521.4790.31738.5R 1 1/21 1/247.8032.3091146.32444.8451.4790.31744.5R 2259.6142.3091158.13556.6561.4790.31756R 2 1/22 1/275.1842.3091173.70572.2261.4790.31771R 3387.8842.3

5、091186.40584.9261.4790.31785.5R 44113.032.30911111.551110.0721.4790.317110.5R 55138.432.30911136.951135.4721.4790.317136R 66163.832.30911162.351160.8721.4790.317161.555圆锥管螺纹型式和尺寸螺纹代号基本尺寸大径螺距每英寸牙数中径小径牙型高度圆弧尺寸底孔尺寸英 寸mmmmtpimm外螺纹H1rmmd=Dpd2=D2d3R 1/161/167.7230.907287.1426.5610.5810.1256.4R 1/81/89.728

6、0.907289.1478.5660.5810.1258.4R 1/41/413.1571.3371912.30111.4450.8560.18411.2R 3/83/816.6621.3371915.80614.950.8560.18414.75R 1/21/220.9551.8141419.79318.6311.1620.24918.25R 3/43/426.4411.8141425.27924.1171.1620.24923.75R 1133.2492.3091131.7730.2911.4790.31730R 1 1/41 1/441.912.3091140.43138.9521.47

7、90.31738.5R 1 1/21 1/247.8032.3091146.32444.8451.4790.31744.5R 2259.6142.3091158.13556.6561.4790.31756R 2 1/22 1/275.1842.3091173.70572.2261.4790.31771R 3387.8842.3091186.40584.9261.4790.31785.5R 44113.032.30911111.551110.0721.4790.317110.5R 55138.432.30911136.951135.4721.4790.317136R 66163.832.3091

8、1162.351160.8721.4790.317161.5制惠氏螺纹的型式尺寸英制普通螺纹 (惠氏螺纹) - 粗牙 (BSW)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径Wwmmmmtpimm外螺纹H1mmd=Dpd2=D2d31/16BSW1.5870.423601.3151.050.271.153/32BSW2.3810.529482.0411.7030.3381.91/8BSW3.1750.635402.7682.3620.4062.55/32BSW3.9690.793323.4592.9520.5073.23/16BSW4.7621.058244.0843.4070.67

9、73.77/32BSW5.5561.058244.8784.2010.6774.51/4BSW6.351.27205.5374.7240.8135.15/16BSW7.9381.411187.0346.1310.9046.53/8BSW9.5251.588168.5097.4921.0177.97/16BSW11.1131.814149.9518.7891.1629.21/2BSW12.72.1171211.3459.991.35510.45/8BSW15.8762.3091114.39712.9181.47913.43/4BSW19.0512.541017.42415.7981.62716.

10、257/8BSW22.2262.822920.41918.6111.80719.251BSW25.43.175823.36821.3352.033221 1/8BSW28.5763.629726.25323.9292.32424.51 1/4BSW31.7513.629729.42827.1042.32427.251 3/8BSW34.9264.233632.21529.5052.71130.251 1/2BSW38.14.233635.39132.682.71133.51 5/8BSW41.2775.08538.02434.7713.25335.51 3/4BSW44.4525.08541.

11、19937.9463.25338.51 7/8BSW47.6275.6454 1/244.01240.3983.61441.252BSW50.8025.6454 1/247.18743.5733.61444.52 1/4BSW57.1526.35453.08649.024.066502 1/2BSW63.5026.35459.43655.374.066562 3/4BSW69.8537.2573 1/265.20560.5584.64761.53BSW76.2037.2573 1/271.55666.9094.647683 1/4BSW82.5537.8163 1/477.54872.5445

12、.00573.753 1/2BSW88.9037.8163 1/483.89978.8945.005803 3/4BSW95.2548.467389.83284.415.42285.54BSW101.6048.467396.18290.765.422924 1/4BSW107.9548.8352 7/8102.29796.6395.657984 1/2BSW114.3048.8352 7/8108.647102.995.657104.24 3/4BSW120.6659.2372 3/4114.74108.6255.9151105BSW127.0059.2372 3/4121.09115.176

13、5.915116.55 1/4BSW133.3559.6772 5/8127.159120.9636.196122.55 1/2BSW139.7059.6772 5/8133.509127.3136.196128.55 3/4BSW146.05510.162 1/2139.549133.0436.506134.56BSW152.40610.162 1/2145.9139.3946.506141制惠氏螺纹的型式尺寸英制普通螺纹 (惠氏螺纹) - 粗牙 (BSW)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径Wwmmmmtpimm外螺纹H1mmd=Dpd2=D2d31/16BSW1.58

14、70.423601.3151.050.271.153/32BSW2.3810.529482.0411.7030.3381.91/8BSW3.1750.635402.7682.3620.4062.55/32BSW3.9690.793323.4592.9520.5073.23/16BSW4.7621.058244.0843.4070.6773.77/32BSW5.5561.058244.8784.2010.6774.51/4BSW6.351.27205.5374.7240.8135.15/16BSW7.9381.411187.0346.1310.9046.53/8BSW9.5251.588168.

15、5097.4921.0177.97/16BSW11.1131.814149.9518.7891.1629.21/2BSW12.72.1171211.3459.991.35510.45/8BSW15.8762.3091114.39712.9181.47913.43/4BSW19.0512.541017.42415.7981.62716.257/8BSW22.2262.822920.41918.6111.80719.251BSW25.43.175823.36821.3352.033221 1/8BSW28.5763.629726.25323.9292.32424.51 1/4BSW31.7513.

16、629729.42827.1042.32427.251 3/8BSW34.9264.233632.21529.5052.71130.251 1/2BSW38.14.233635.39132.682.71133.51 5/8BSW41.2775.08538.02434.7713.25335.51 3/4BSW44.4525.08541.19937.9463.25338.51 7/8BSW47.6275.6454 1/244.01240.3983.61441.252BSW50.8025.6454 1/247.18743.5733.61444.52 1/4BSW57.1526.35453.08649

17、.024.066502 1/2BSW63.5026.35459.43655.374.066562 3/4BSW69.8537.2573 1/265.20560.5584.64761.53BSW76.2037.2573 1/271.55666.9094.647683 1/4BSW82.5537.8163 1/477.54872.5445.00573.753 1/2BSW88.9037.8163 1/483.89978.8945.005803 3/4BSW95.2548.467389.83284.415.42285.54BSW101.6048.467396.18290.765.422924 1/4

18、BSW107.9548.8352 7/8102.29796.6395.657984 1/2BSW114.3048.8352 7/8108.647102.995.657104.24 3/4BSW120.6659.2372 3/4114.74108.6255.9151105BSW127.0059.2372 3/4121.09115.1765.915116.55 1/4BSW133.3559.6772 5/8127.159120.9636.196122.55 1/2BSW139.7059.6772 5/8133.509127.3136.196128.55 3/4BSW146.05510.162 1/

19、2139.549133.0436.506134.56BSW152.40610.162 1/2145.9139.3946.50614155圆柱管螺纹的型式和尺寸British Pipe Thread (惠氏管螺纹) - 圆柱 (BSPP/BSPF)螺纹代号基本尺寸大径螺距每英寸牙数中径小径牙型高度底孔尺寸mmmmtpimm外螺纹H1mmd=Dpd2=D2d3G 1/81/89.7280.907289.1478.5660.5818.7G 1/41/413.1571.3371912.30111.4450.85611.6G 3/83/816.6621.3371915.80614.950.85615G

20、1/21/220.9551.8141419.79318.6311.16219G 5/85/822.9111.8141421.74920.5871.16220.75G 3/43/426.4411.8141425.27924.1171.16224.5G 7/87/830.2011.8141429.03927.8771.16228G 1133.2492.3091131.7730.2911.47930.5G 1 1/81 1/837.8972.3091136.41834.9391.47935G 1 1/41 1/441.912.3091140.43138.9521.47939.5G 1 3/81 3/844.3232.309114